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1) Endless repetition of the same episodes of a sitcom or commercial on television.
2) A radio station playing the same pop song over, and over and over again.
"I used to think that chick on the Progressive commercial was kind of cute the first 50 times I saw it, now thanks to oversaturation, she's just annoying."

"Foster the People is so oversaturated on the radio, I will never buy one of their albums!"
by Snowskater69 December 10, 2011
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